Most people (I'm speaking from a US perspective, but this is true in most places) expect politicians to do things government should not be doing. You can't expect them to get involved in other people's lives and then get mad when they come for yours, which is exactly what many people do.

Governments are corrupt because we first demanded that they become corrupted. We demanded that politicians become central planners and so they became so.

We demanded 'safety' over freedom and got it.

The problem starts with us and so does the solution. Politicians are simply holding a mirror up for us to see ourselves.